If you ve ever wanted to get into the Bitcoin game for fun and profit, this new $400 gadget could be the best way to do so. 21 Inc.'s Bitcoin Computer is a tiny Linux-based box that lets you mine the cryptocurrency and buy and sell digital goods for Bitcoin, either independently or plugged into a PC. It includes a micropayments server that lets you receive payments for your offerings, meaning you don't rely on a third-party service that will take a cut of your earnings. The 21 connects to your laptop and includes a micropayments server to buy and sell… This story continues at The Next Web